My rx8 has been sluggish latley and im hearing a snapping or clicking sound from under the hood. Normally it's when I'm on the hiway picking up speed and it begins to be sluggish and the clicking starts. Then it seems like it gets past the problem and it's fine. Then in the past week it has shut off completly twice then comes right back on my lights flash and come on, then right back off. Any ideas what it could be?? Thanks

 

Most likely you have a bad plug wire(arcing over to engine), or you have a plug wire not making good contact at the tip with the plug. Better take a looksee.